Initial Laravel API import

- Complete GGZ Ecademy Laravel backend application
- RESTful API for learning products, members, filters
- Authentication and authorization system
- Database migrations and seeders
- Custom CRUD generator commands
- Email notification system
- Integration with frontend applications

app/Repositories/Revision.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Repositories;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Revision extends Model
+{
+    protected $guarded = ['id'];
+
+    protected $appends = ['hasChanges'];
+
+    protected $with = array('user', 'revisor');
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function revisor()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function getHasChangesAttribute()
+    {
+        return $this->updated_at != $this->accepted_at;
+    }
+}